First off thanks for all the info in all the threads. I have purchased the JDM double din and the pioneer avh4300dvd along with all the required wires. After i bought them i have been debating now replacing the stock bose amp and sub. My question is 3 fold.
1)I have already replaced the bose fronts with kappas are there any recommended 5 channel amps in the 250 dollar range that can drive them and possibly a sub well?
2) If i do get the 5 channel i have a sedan so i have 6 speakers, should i disconnect the rear door speakers or the rear shelf speakers?

3) Lastly and most importantly, if i choose to just do the install for the head unit first and amp later is there any wiring i should do while the head unit is pulled in anticipation of doing an amp and possibly sub later. Can i run some rcas from the trunk into the headunit and still use the stock bose sub for a little while? Would i just need to connect to those rcas with a LOC and then just pull the loc when i get the new amp?
Thanks for any info

 

#1 I'll leave to a few of the other, more component-savvy users to answer.

#2 Your sedan has four speakers, a pair of tweeters, and a "sub" in the rear shelf. If you do get some good speakers up front and a sub in the trunk (a real sub, not the Bose POS) you don't really need rear speakers.

#3 If you use the PAC ROEM-NIS2 connected to the speaker-level outputs, you can connect 3 pair of RCAs to the 4300's line-level outputs and run them at least to under the rear seat. You won't have to use a LOC, since those are line level outputs already. Just ensure that you cover them properly so they don't accidentally touch any metal under the back seat.

 

A 5-channel amp for $250 might be hard to find......unless you get one used.

 

Use a 4 channel

ch 1 and 2 can power your front speakers and ch 3 and 4 can power a sub

 

Thanks for all the help what are the to clarify the 3 sets of rcas would be L R front and one intended for the sub? So i would need 2 more if i intended on having rears? I was under the impression the PAC was for people having volume issues with stock amps and that and that can i use the metra wiring kit instead. Am i missing something as to why i need the PAC ROEM-NIS2?
Thanks again

 

front
rear
sub