Add up or measure your amp draw with everything turned on in the car. You need to at least match that with an alternator of equal output. IIRC some of the GM Denso mini alts put out up to 120 AMPs and their output at idle is substantially higher than Mopar alts, which is their main drawback. AER makes conversion brackets for BB & SB Mopars. Tuff Stuff, and I'm sure others, offer uprated Mopar alts. I went with a 100 AMP TS alt in my Duster running similar equip as you. Puts out 45 AMPs at idle.
