1. This site uses cookies. By continuing to use this site, you are agreeing to our use of cookies. Learn More.

Need help ASAP with wiring for my new subs.

Discussion in 'Electronics' started by Xero, Nov 12, 2007.

  1. Xero

    Xero Guest

    Hey guys. I just picked up two Alpine 10" Type R subs and a 1000watt Rockford amp. I've already blown enough cash on the equipment and don't really feel like spending the extra 60 bucks to install it, so I'm going to try to do it myself.

    I've got an '88 GT convertible. I was looking for a hole in the firewall to run my 4gauge wire through to the battery, but didn't really see one. Do I need to make a new one?

    Also, what info could you supply to help me with the installation? Do I need to run the speaker wire to the deck on a separate side from the 4gauge? I'm going to be putting the subs in my trunk in a dual enclosure. Any advice?
  2. rye

    rye Well-Known Member Donated!

    You should run the rca cable's and power/remote wire's on opposite sides of the car to avoid interference...

    If you can't find a hole to run the wire, you'll have to make a new one.... A quick look under the steering wheel where the pedals go through the firewall will let you know where you can safely drill... Make sure you're not going to hit anything in the engine bay too!

    And I would bridge that amp if possible and run both subs off the bridged output, I seemed to have better outcomes with that with dual subs!

    Youds can probably reiterate this a little more for ya....
  3. 89celicagt

    89celicagt Well-Known Member Staff Member Super Moderator Donated!

    I used the speedo firewall hole on the drivers side.
  4. schmooot

    schmooot Well-Known Member

    ^^^^exactly what he said^^^ make sure you ground the amp as close as possible to the amp as well...and make sure it is a good ground. If you post the model of the amp we can look the specs up and see if it is bridgeable

    There should be an empty...or almost empty grommet just beside the brake booster (on the passenger side of the booster 3 or 4 inches away and high on the firewall)
  5. ST165-2765

    ST165-2765 Well-Known Member Donated!

    Heres a pic of the firewall for a GTS. I'll try and get a better pic of the drivers side tommorow

  6. ST165-2765

    ST165-2765 Well-Known Member Donated!

    1- spedometer cable
    2- brake
    3- clutch
    4- steering boot
    5- gas peddle cable
    6- heater cable

    1- heater hoses

    1- windshield wiper motor (does not go into interior cabin)
    2- engine wireing harness
    3- air conditioning hoses

    1- don't remember

    1- tranny shifter cables
  7. rye

    rye Well-Known Member Donated!

    Now tell us you can't find a hole to stick it.
  8. Letze

    Letze Well-Known Member

    I can show you another option as well... its a lot easier if you don't want to go through the fire wall...

    You can run it under the fender (NOT THROUGH THE DOOR JAM!) where there is a sealed plug all underneath the fender then you can root it along the drivers side of the car to the back, easiest way if you don't want to rout wires all throughout your engine bay.
  9. Xero

    Xero Guest

    Thanks for everything guys. I ended up just running it through the throttle cable's hole, around my pedals, and back. Actually, for never having ever done ANY work like this, I think it's a damn clean job. VERY minimal cables showing... and it fits perfectly. I'll get some better shots later.

  10. Youds

    Youds Well-Known Member

    aw shit sorry i missed this.

    im quite sure the only rockford 1000watt is the bd 1000 which is a mono thats 1000wrms (actually a bit more) at 2 ohm iirc. what impedance are your subs ie single/dual voice coil 2 or 4 ohm coils?

    as for power routing i ran mine originally through hole 3 that is the AC hgoles (cause i dont have AC) and when i went to 0gauge i ran it through the steering boot quite tightly so it didnt interfere :p

    and i can help hiding those cables if u tell me where they are showing, its quite easy to hide them completely and i dont mind taking pics of my install. i just did a whole stereo today actually, so im gettin back into it again lol

    well post up your model numbers and we'll make sure u get the most out of that setup. the bd1000.1 is quite good from what ive seen and type R subs can be destroyed. is that box sealed? :(
  11. rye

    rye Well-Known Member Donated!

    hey youds how fast am I going to blow up my pioneer sub??

    it's 150rms and my amp is 500rms.....but the amp's gain is up about halfway, and I never crank the stereo to full power....
  12. Youds

    Youds Well-Known Member

    always better to overpower than underpower. unless u can tell its going past full excursion (which is probably isnt) then you are fine

    you could up the gain some more too but if u start seeing that the sub doesnt get louder when u up the volume on your deck i would back it off a bit :)
  13. rye

    rye Well-Known Member Donated!

    Yeah I don't drive it to the point of distortion...so it should be fine then :d Even if it blows up the pioneer sub was like $100 at walmart...
  14. Xero

    Xero Guest

    They are 4 ohm subs, and I wired them as such:

    I'll get some pics asap, but there is hardly anything showing.

    I've got the BD1000 amp and dual type R's in a totally sealed box. I'm not quite sure what to set my gain/frequency/punch EQ at, and the manual doesn't help much. Any suggestions?
  15. rye

    rye Well-Known Member Donated!

    gain, halfway, maybe a little more

    freq, I've found most of my setups work best around 80hz-100hz

    bass boost (if that's what punch eq is) try not to crank it.....but fine a nice setting that you like... it pretty much just adds extra bass at low freq's!
  16. rye

    rye Well-Known Member Donated!

    btw that diagram is weird to me.... why would you want to bridge the terminals of the subs? seems like it should be shorting out the signal?? that's highly illogical!
  17. underscore

    underscore Well-Known Member

    it's a resistance thing, so you don't kill the amp with too much current while still using a mono style amp for two subs.
  18. Youds

    Youds Well-Known Member

    uhhhhhhhhhhhhhhhhhhhhh gain at full

    wired like that they are each getting 250rms....so full cause they take 500.

    how goods ur wiring for the amp and what year is the amp id run it down to 1 ohm but thats me ;)

    its rated at 2 but could probably be ran at 1 hehe
  19. Xero

    Xero Guest

    I don't know how to set it at 1 ohm...

    Everything is brand new. I'm using a Rockford wiring kit (which is 4 gauge wire). Yeah... um, I'm told that my subs can hit even harder than they are, but I have my system turned up to the max and they aren't :(

    Also, my 'subwoofer' setting on my deck isn't changing the volume of my subs at all.
  20. schmooot

    schmooot Well-Known Member

    are the rca cables plugged into the "sub" output or just the front or rear outputs? The sub amp has to be plugged into the sub output in order for the indeck setting to change the sub level

Share This Page