I would like to keep my original Mo soon 6cd stereo (and Driver Information Center) but am open to options to play music from my phone. I have XM but dont use it. Ideally I would like Bluetooth for music and hands free calls but adding an aux input is an option. Please reccomend options and if possible links of products. I am open to an aftermarket Bluetooth amp and new speakers (which is what Crutchfield suggests) another question is how difficult are these options for a basic car stereo installation shop because I would prefer to avoid a $2000 hit for this if possible. Last question, how many speakers and what sizes do I need. Any other helpful information such as number of channels needed in a new amp or ohm/amp information I should keep in mind? Thanks in advance!!