Dell Inspiron 16 Plus 7630 Owner's Manual page 63

Steps
1. Using the alignment posts, place the speakers (woofers) on the palm-rest and keyboard assembly.
NOTE: Ensure that the alignment posts are threaded through the rubber grommets on the speaker.
2. Route the speakers (woofers) cable through the routing guides on the palm-rest and keyboard assembly.
3. Adhere the tapes that secure the speakers (woofers) cable to the system board.
4. Connect the speakers (woofers) cable to its connector on the system board.
5. Connect the keyboard-backlight cable to its connector on the system board.
6. Connect the touchpad cable to its connector on the system board and close the latch.
Next steps
1. Install the memory module.
2. Install the battery
3. Install the base cover.
4. Follow the procedure in After working inside your computer.
Removing and installing Field Replaceable Units (FRUs) 63