I am wantin to fit an amp in my mk4 Golf.
Are there any obvious holes in the bulkhead that i am missing that i can put my power wire through???

You dont need to, you can take it from the fuse box as the main power wire is there, talk to KEN at AwsomeAutomotive he can explain it better or offer a fitting service and very good prices!

the best place to connect it is directly to the battery
unfortunately to do theis the glove box and centre console need to be removed as the grommet is right up behind the airbag
feel free to give me a call on 07765540650 if you would rather i fitted it