Brake and taillight problems

[Kindredz]

I just had a new 1915cc engine installed and now some lighting problems.
1. When I put on a turn signal, the reverse lights blink?
2. When I put the shifter in reverse, the red brake light/seat belt indictor light on dash come on?
3. When I have driving lights on and flick left turn signal, the front drivers signal doesn't blink, and the rear drivers tail light blinks, but from the reverse bulbs?.

What do I do?
1973 super beetle

[GArBa]

you have circuits "leaking" into one another. the rear lights connectors are on the sides of the engine bay: you have to use the wiring diagram for your MY to check if they got messed up. also, check your grounds and the reverse light connection at the gearbox.
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cars:
'97 type 1 1600i
'14 type AA Seat Mii (sadly dead after 270.000 km)
'22 type C1 T-Cross
'23 type AC3 Hyundai I10 (VW no longer makes small cars!)
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moped:
'82 Benelli Magnum 3v

[andk5591]

See if any of the ground connections got knocked loose beside the engine.
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D-Dubya Manx clone - 63 Short pan,1914.
Rosie 65 bug - My mostly stock daily driver.
Woodie 69 VW woodie (Hot VWs 7/12).
"John's car" 64 VW woodie - The first ever
Maxine 61 Cal-look bug - Cindy's daily driver.
Max - 73 standard Beetle hearse project - For sale
66 bug project - Real patina & Suby conversion
There's more, but not keeping them...

[Kindredz]

Thanks, will check in engine bay for both of those suggestions,