New to the forum. Just some info on the audio upgrades done on my 1500. I am using he factory head unit. Here is a list of my upgrades Processor : Mosconi 6 to 8 v8 with the SP-DIF multi & AMAS-2 . This combo gives you 8 channels of pre outs and allows for Bluetooth audio and Bluetooth phone calls. Amps: Mosconi 200.4 for the front mid bass and midrange, 100.2 for the tweeters & JL Audio 750/1 for the Sub. Rear speakers are deleted. Speakers: Focal KRX3 3 way set ( running active) 6.5" mid bass, 3" midrange & 1 inch tweeter. Sub is the JL Audio W7 12" AE. Connection: 0 gauge Power and Ground wire, stinger 9000 RCA's and stinger 16 gauge speaker wire. I would love to hear how some of you guys have upgraded you system.