I’ve got a C280 that is without headlight wipers and rear headrests. How hard / expensive is it to add these items? I know the wipers require a motor, wiring etc, but the headrests I’m hoping are just a swap of the rear deck. Any information would be helpful.

Thanks

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1997 C36 Designo Red
1999 SLK230 Sport
1999 Honda CRV 5-spd

1990 Acura Integra (given away!)
1995 Mazda Miata Merlot SE (sold)
2003 Honda Element EX 4WD (sold)
1994 C280 - (sold)
1985 190e 2.3 5spd (sold)
1991 Yamaha FZR1000 (sold)
1994 MB S420 (sold)
1994 BMW 318ica (sold)
1991 Mazda Miata BRG SE (sold)
1989 Fiat Spyder (Died!)