What kind of keyless entry will work?

I need a keyless entry system but have no idea where to start. I don't care about any alarm - just want a keyless entry. My car has power locks but no "switch" - basically when the driver's solonoid locks/unlocks, all of them do, so I think I need an actuator to operate it. I guess what I'm asking is 1.what do they call this 'actuator'? and 2.what's a good brand/easy install? Thanks.Subtlety is EVERYTHING.

Start with :YearMake Model???????????????????MO

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1990 Volvo 760 wagon!!!!!!!!!!!!!! Subtlety is EVERYTHING.

U will need 1  - 2 wire actuator......As far as Brand.........Most will doEasy.............Depends on your experience.MICRO Alarms makes a NICE Keyless Entry    DLR4H   .. Can be installed to Flash Parking Lites, Honk Horn, Panic, etc.There are lots of others also MO

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Thanks very much. I asked brand only because any place that sells alarms/keyless entry units around here are stereo shops that will only sell to install them. So, that leaves me with online shopping, Feebay, etc. to find a kit. Subtlety is EVERYTHING.