if i have the base system, not the "upgraded" pioneer one, the base one doesnt have a sub or amp right? just the stock head unit and door speakers? so if i upgrade the radio, there is no bypassing any stock amps or subs or anything like that?

 

no but I just put my new radio in tonight be really careful which harness you buy, get the expensive or good one if you want it to work right the first time, I am going to have to recheck mine tomorrow and run the acc wire!!!

 

If i buy a pioneer avic-z110bt 7" double din, its "XM ready", will this work with the factory XM 1 year subscription?

 

No sir. You need a Pioneer XM module, and you may be able to transfer your subscription to that.

 

figured i'd need some other kind of module

i may keep it factory for a while. its not a bad little setup. but i do like that avic-z110bt...

 

6th Ave. electronics has the z110 on sale for $799.98 after a $200 rebate.
That's the cheapest I've ever seen it.