Keyless entry makes any old car modern. well worth the <$20 in parts. I never use the key to get in or lock the car anymore. I keep another ignition key hidden/locked in the car.

Keyless is the bomb! Click to play video

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85 300D turbo pristine w 157k when purchased 161K now
83 300 D turbo 297K runs great. SOLD!
83 240D 4 spd manual- parted out then junked