I have taken out the (modest) ICE from my previous car and it consists of 1. Clarion DXZ785USB HU 2. Illusion Electra 6.1 EL comps 3. GZ MKII 12 inch sub 4. Blaupunkt GTA4 Spl MKII 4 channel amp For the new car, I was contemplating this same setup, with an addition of a set of components in front, and a mono/2 channel to drive the sub exclusively. So now I need your inputs on the following: Whether to retain stock HU or not I would ideally like to have the Blue & Me and steering controls. That's the only reason to retain stock HU. If I go this way, I'll have to add a sound processor right? Which one is recommended? EDIT - Found these two JL Audio CL441dsp CleanSweep® (http://www.crutchfield.com/s_136441D...Brand|JL+Audio) Rockford Fosgate 3SIXTY.2 (http://outlet.crutchfield.com/p_5753...ckford+Fosgate) However, If I'm contemplating a HU change, I might go in for Clarion DXZ 785 USB / Kenwood 7046BT / r Alpine 117. However, how would I retain steering remote control and B&Me? 1. One option is PAC SWI JACK (Pac-Audio.com Product Details | iPod Integration for your car and More by Pac-Audio - Connecting you to the future) - Has any one done this in a Linea? - Are PAC modules specific to HU models or there's a universal one as well? 2. If I get a BT enabled HU, I believe it wont 'talk' to B&Me. Is there any interface to enable this?