When I purchased my 2000 Lt it had a M1 already installed. However I have no other accessories. I am getting ready to finish off the system. Is the M7 so much better that I should toss the M1 and start over with a new M7? Or should I buy stuff that works with the M1? Eventually I plan on having the following hooked up, Radar detector, 2 helmets with mic's, cell phone, and maybe my gps.