Had these a while but never got round to fitting them in the Saph.

Need to double check the codes, if anyone can help?
Ford upgrade "Sound2000" headunit, Serial number- C027887.
Ford upgrade "Sound2000" CD unit, Serial number- 0010807.

Does anyone know if these are a direct replacement for the standard system in a '92 Saph, wiring etc? Been told theres something else in behind the dash (amp maybe??) but couldnt find anything when it was removed.

Any help much appreciated.
Stu.