The speaker light on my Satellite P105 laptop is not working

First of all I really want to congratulate you and thank you for the Laptop Disassembly guides. Thanks to you I was able to upgrade my Toshiba Satellite P105-S9312’s CPU.
Well It did take me a long time taking it apart (longer than putting it back together hehe)..

I applied Arctic Silver 5 thermal compound on the CPU, GPU, Chipset, etc… and put it back together..

I noticed I was left with 1 screw in my hand.. hehe it could have been worse. Anyways what I noticed is that you know that the P105 has a Blue LED stick right in front of both speakers, well the Left speaker’s Blue LED stick is not turning on, so I want to know if you would specify to me where’s the connection for that since the speaker does sound. And I don’t want to disassemble the laptop again unless I know exactly where to look.

Anyways, any suggestions will be really appreciated.

These lights are located on the back side of the top cover. The power cable for these light plugs into the motherboard and this connector is located on the right side from the touchpad cable under the keyboard.
Take a look at the step12 in this disassembly guide for Toshiba Satellite P105 notebook.
Do you see a small white connector on the right side from the touchpad cable? This is connector for the speaker lights cable. In my guide I used a laptop without lights on the speakers, that’s why there is no cable plugged on the picture. Try reseating the cable, reconnect the cable. Maybe it got loose.
If it doesn’t help, probably you’ll have to take it apart again and take a look on the back side of the top cover and check the cable.