I installed tomtom6 on my spvm3100 wouldnt pair up at all dropped pairing after 10seconds

solution go into phone /program files/navigator/navigator.cfg copy this file to ur c:drive and open with notepad

you'll see a load opf blocks but it will also say com6 edit the com6 to com0 save file copy back to original location on phone overwriting original file

then start up bluetooth tick seriel port then outgoing port to com0, then start up tomtom go into gps status select other gps device then com0 is in list highlight this and works a treat

hope this is of help to someone