Yes, there is bigger better newer stuff available, this is for the Mopar purists out there. Having the PN's makes it easier to search on line (eBay/other) for available used stuff.
http://www.wjjeeps.com/radios.htm
I am a little surprised this info/topic wasn't ever added to the FAQ section. There is nothing for audio. And I cannot create a new topic in FAQ.
Amp wiring:

This is mostly for the connector pinout pictures

Edit: Audio wiring diagrams and pinouts are included in the above link.
Spoon feeding....
http://www.wjjeeps.com/audiowire.htm