TR6 Radio Question

[Pat Leask <pleask@shaw.ca>]

I was wondering if anyone can tell me what sort of radio unit came in a mid 
seventies TR6 ? I have collector plates on my TVR (TR6 running gear) and would 
like to have some tunes when I'm tearing up the road ! 

I am after a AM/FM Cassette deck (No, not 8-track) that is a mid 1970 or so 
unit. Because of my collector plate status it has to be stock for that period 
of time.

Does anyone have such a thing or can suggest something ?

Thanks, pat
Victoria BC