Headlight/indicator issues

[Sam Johnson]

Hello everyone

Recently my near side headlight bulb went! So I went to change the bulb only to find that the housing had eroded! Rusty and basically not fit for purpose
Hunted the interweb for a replacement and couldn’t find anything so decided to just get on eBay and buy a standard H7 bulb holder and just connect the existing wires, no problem all seemed good (apart from the fact the new square bulb holder won’t fit where the round one once was……….blue tac ….sorted-ish!

Now, my indicator light stays on when my headlights are on and goes completely mental (double speed) when I’m signaling

Any ideas? Obviously I’m no car mechanic but is it simply the bulb or Fuse?

please advise

Just to add that my indicators work fine if I haven’t got my headlights on