I think I have found the problem, let me explain.
The TIB and the head installed right now seem to not be compatible with the W3 series control mics, and by searching up the TIB online, you can see that it is not compatible with those types of mic-heads. This was found on an eBay description:
Motorola XTL5000 TIB MHLN6883E W SERIES Mid Power with Flex cable 3085019F02 | eBay
It says that the flex cable
3085019F02 will not work for W3 type remote control heads, which might be the case.
And the radio itself costed $20 in cash so I'm not worried about that, this might be the reason why it is not turning on but if anyone else has something to add please reply to this thread. Thank you to everyone that has responded to me! It has been very helpful in every comment.