Sometimes its hard to tell which stereo model is fitted as many car manufacturers
will commission car audio companies to supply stereo’s for their cars branded by car
manufacturers name, not the stereo manufacturer. If you are not sure which model you have.
Here is a brief guide to car manufacturers and the stereo models they fit.

Alfa Romeo - Blaupunkt
BMW - Philips, Blaupunkt
Chrysler - Clarion
Citroen - Philips, Blaupunkt
Ferrari - Becker , Alpine
Fiat - Philips, Blaupunkt, Grundig
Honda - Philips, Blaupunkt
Jaguar - Philips, Sony, Alpine
Landrover - Philips, Blaupunkt
Mazda - Clarion
Mercedes - Becker, Blaupunkt
MG Philips, Blaupunkt
Nissan - Blaupunkt, Clarion
Opel - Philips, VDO, Blaupunkt, Grundig, Delco
Puegeot - Philips, Blaupunkt, Clarion
Porsche - Philips, Blaupunkt, Becker
Proton - Blaupunkt
Rover - Philips, Blaupunkt, Clarion
Renault - Philips, Blaupunkt
Saab - Clarion
Seat - Grundig, Blaupunkt
Skoda - Grundig, Blaupunkt in Older Models
Smart - Grundig
Vauxhall - Philips, VDO, Blaupunkt, Grundig, Delco
Volkswagon - Philips, Grundig,
Volvo - Philips