No daft questions lads I'm a noob with this stuff
Receiver is this one doesn't say fm on it but assume it must be due it's age
http://m.ebay.co.uk/itm/FUTABA-R133F...-/400482526004
Both crystals say fm as does the module in the transmitter
Tried it in a car with a sanwa reciver and it does exactly the same
Not sure what PCM hrs mean
Speedo is brushed on old mtroniks pro digi rmx, it has a set button which stops the wheels turning but when I let go they start again. As it did the same in the other car I'm guessing it's not that