Just got the kit to install. Question is can i just chop off the supplied loom connectors and hard wire in 12 v and ground connections, one permanent lice and one ignition controlled? If i use the supplied iso connectors would these plug and play in an 2011 s212 E 350? also I assume i use the line out socket to connect to the aux in in the glove box? It mentions cabin illumination connection is this needed?