factory amp wire location?

[Geldtron]

a while ago i installed a avic x920bt. got subs in and everything. and its all been working great.
however, i have my subs tuned pretty low. and ive been missing some of that mid range base...and id like to hook up the "speaker subs" in the rear deck. i figure i can just use a line out funciton from the deck...but ive been having trouble finding where the wires for the amps signal are located.

 

[LDM]

For Gen1 LS, see post #44 (8-pin harness):

http://www.lincolnvscadillac.com/showthread.php?p=907252#post907252

 

[LDM]

I used this 8-pin harness (Best Buy has it):

METRA 70-5519
http://www.bestbuy.com/site/Metra+-...8438378549&skuId=8532411&st=70-5519&cp=1&lp=1

http://www.sonicelectronix.com/item...ut[query_id]=9575811&SearchClickout[Ignore]=1

[url]http://www.ebay.com/itm/ws/eBayISAPI.dll?ViewItem&item=140746012345+&catId=293&item=140746012345[/URL]

 

[Geldtron]

haha i found it...i guess i had hidden it away on myself as i wasnt using it.
one more quick question. is it necissary to hook up the amp turn on and ground wires that are apart of the wiring harness. currently i got the rca plugged in and 2 amp wires and 2 ground wires hanging loose off the adapter.

 

[LDM]

Yes use should hook those up, as they provide the power and ground to the two factory amps for center & subs.

You will need to add a 1K (1000 -1500) ohm resistor (or one of these that I used) to avoid the pop when the amp turns on, between the remote amp turn-on output from your headunit and the turn-on input power wire to the factory amp(s)...

Ford Lincoln Mercury amp TURN ON POP NOISE ELIMINATOR for OEM FACTORY AMP (Eliminates speakers popping on FORD with 5v amp turnon): [url]http://www.ebay.com/itm/120828260742?ssPageName=STRK:MEWNX:IT&_trksid=p3984.m1439.l2649[/URL]
http://directelectronix.webs.com/instructions.jpg

I guess you could try it without, add it later if needed... as some get the pop and others haven't. I think it's more common to get a pop then not when the factory amp turns on.