Will this Work????

i got the factory bose system an the lil 6.5 speaker in the hatch that acts like a lil sub. say if i bought a jl 6.5 w3v3 sub an replaced the factory speaker an run a bigger amp to the jl will it still sound good an even louder? the factory one sounds good so if i replace it an run more power to a better 6.5 wondering if its worth it?

just get a sub and you can leave that one hooked up. it still plays mid and high frequencies, just not as clearly, so it still contributes to a fuller sound. or just take it out, put speakers in the sail panels and put subs in the back.

iam doin a 3,500rms system with to 12s in the summer but for now iam trying to get alot of sound froma small speaker lol an was wondering if ne 1 tried it

you cannot integrate into the factory bose system like that. our bose systems use a floating differential signal input which is different than what any aftermarket units that I've experienced are compatible with.

The best thing that you can do is rewire that system. Especially if you are planning on going that big with your audio system. Leaving the bose will only give you headaches down the road.