Thx Neil. Sorry for delay in posting - have been away a few days. Yes I realise what you are saying about model numbers. However I see in the video on battery replacement that there are 2 cut-out spaces in pcb near mic slit so I guess that is to accommodate the mic body (and maybe a BT mini module). Maybe the pcb for BT models has an extra chip soldered onto the pcb (and therefore not pluggable into a empty socket). Would like to resolve this once and for all - ANYONE know anything about the physical pcb differences between non-BT Nuvi 1300 and the other 13XX with BT?
Just hoping ....
PG
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