side markers as turn signals on CGT

[Geordie]

OK, I'm in the mood to modify the side marker lights on my '82 Coupe so they
will blink with the turn signals. I have read a couple different
instructions, one on Huw's site, they other at the Stern Lighting site. When
it comes to electrics, I'm a bit of a novice, so I want to make sure I get
the wiring right. Last year I converted my headlamps to E-Code and I did all
the wiring for that, so I'm not stupid, I am just unsure about how to wire
these side marker lights. So I'm looking for the simplest way to implement
this system. Any BTDTs or words of advice? Any info would be great.

-Geordie--
'82 Coupe