PARTS EXPRESS 300-7310 Mini Ammo Box Installation Guide
- June 5, 2024
- PARTS EXPRESS
Table of Contents
Mini Ammo Box Installation Manual
#300-7310 (Blue) / #300-7311 (Pink)
1. Start by cutting two 2″ holes for each speaker. The bottom of the speaker hole should be 1-7/8″ from the bottom of the ammo box. The holes should also be 5/8″ from the outside edge of the ammo box. A 2″ hole saw works well if available.
2. At the top of each hole cut out 1-1/2″ W x 3/8″ to make room for the speaker terminals. Use a Dremel tool for this cutout if available. Jigsaw might crack the plastic. Insert speakers to make sure the hole is large enough, but don’t permanently install the speakers until the battery board is in place.
3. In the rear of the ammo box drill a 1/4″ hole 3-1/2″ from the right edge of the ammo box and 1-1/2″ from the bottom of the ammo box. This will line up with the power jack on the battery board when it’s installed.
4. Drill a 9/16″ (15mm) hole for the power switch at least 1″ above the DC power hole and in the center of the ammo box. If using a 9/16″ drill bit you may have to ream it out a little for the switch to fit. Make sure it’s a tight fit. Wait to install the switch until the wires are ready.
5. Correctly install the 18650 batteries by matching the polarity of the board to the polarity of the batteries. The dimple in the battery is the + side.
6. Install the battery board to the aluminum L-bracket with the 2.1 x 5.5mm DC jack facing away from the L side of the bracket and the batteries facing the bracket with 10mm standoffs and included M3 screws.
7. Place two 3″ strips of the included double-sided tape to the L-bracket and install the bracket so it lines up with the DC jack on the battery board. Stack two to three small strips of double-sided tape together and use a paper hole punch to make a hole in the stack. Place the tape between the DC jack and the hole in the ammo box to help keep it sealed. Once the battery board is securely installed, place a piece of paper over it to prevent any metal from touching the board.
8. Install the speakers by carefully placing the terminals in first. Drill 1/32″ pilot holes for the included #6 black screws. Tighten the screws in a cross pattern.
9. Use the 18 gauge speaker wire and crimp the large quick disconnect to the red wire and the small quick disconnect to the black wire. Always strip at least 1/4″ of the insulator off to expose the bare wire and twist the bare strands together before crimping. One speaker wire should be around 11″ and the other wire around 8″. The bare wire ends will go into the left and right speaker terminal screws on the amp board.
10. Use the black and red power wire with the black plug that came with the battery board to wire to the switch. Cut 5″ away from the black plug both the red and black wire. Crimp a quick disconnect to the red 5″ wire. Place both bare wire ends of the black wire into one quick disconnect and crimp it. Identify the bronze terminal on the switch and push the switch into the hole you made in the ammo box. The black wire hooks to the bronzecolored terminal on the switch and the other black bare wire end hooks to the power screw terminal on the amp board. The red wire hooks to the center silver terminal. Crimp the remaining quick disconnect to the remaining red bare wire and hook it up to the outer silver terminal. The other end of the bare red wire goes to the + power terminal screw on the amp board. Remove the paper that was suggested to cover the battery board. Connect the black power plug to the black power socket on the battery board. Make sure all the wires are securely crimped inside the quick disconnects. Soldering is always better, but to make this kit solderless we had to use quick disconnects. Secure the amp board to the lid of the ammo box with the remaining double-sided tape. Lift and carefully twist the IR silver receiver so the black dot faces the front of the ammo box.
11. Plug the power supply into the DC power jack in the back of the ammo box to kick start the batteries. Turn the power switch on and sync your Bluetooth device to the amp board. Turn the volume up to 3/4 and close the ammo box lid making sure none of the wires get pinched. Pull the battery protect tab out of the remote and play your favorite song. Point the remote at the front of the ammo box to adjust the volume and EQ settings. Make sure you charge the batteries all night. You can turn the ammo box off with the remote, but you’re in standby mode which still slightly drains the batteries. Turn the power switch in the ammo box off to reserve battery power. If you turn the power switch on and noticed that the box has no power, plug the power supply in for 5 seconds to kick start the battery board.
Additional Options
12. Additional things can be done to improve the sound. Adding Acousta- Stuf Polyfill might help to prevent a hollow-sounding ammo box. Small base ports might give you a little extra bass.
13. To protect the speakers use a small speaker grill or metal fan guard.
14. Cut holes in the front of the ammo box to manually increase volume, use the line input, and insert flash drives externally. The only mounting support would be from the volume shaft nut and you would lose the sound seal.
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