Sorry if this has been brought up already,
But is it possible to install aftermarket 12" subs
with the faactory bose head unit and factory speakers.
Any help would be greatly appreciated..........

 

yes you need the PAC kit, check the audio forum, a bunch of people have done it.

 

yes you will need to splice into the speakers for the rca output . run a line to the trunk from both rear speakers. dont forget to also re hook up the speakers. purchase a inline rca adaptor from a shop like bestbuy etc for 20 bucks and there u go...

 

I have this setup. No problems at all. Factorys are still good, the Bass does not drown them out and I'm running a 400w RMS Pioneer. You do not need a PAC adapter. Especially if you plan on getting a newer deck in the future..I have no probs..

 

PAC AOEM-NIS2 (or similar such adapters) plug in directly at the headunit and give you 2 sets of RCA outputs to replace the whole system. If you only want to add subs, another way is to get an amp that accepts speaker-level inputs and has sub-outs or get a cheap speaker-level to RCA converter and use the factory sub wire for the connections.

 

Actually, I took the Bose rear sub wiring and spliced into that. There is power, rca single channel line level, and a remote lead hook up....You dont need any adapter.

 

yup do that, this is what i did before i changed out the speakers and added a ch4 amp.....IF your going to add a 4 ch amp and a mono block, get the PAC....that will add front and rear outputs.....then your 4 ch amp should have a pre out so you can add on the mono block to that....