If you are planning on using the RS3000 receiver that comes witht he radio there is no need for crystals at all.
But since you keep asking I'm assuming you are trying to use an XS3 Synth Radio with a Non-Synth receiver using a standard crystal. You can try this but I had no luck at all. The closest I got was a very glitchy run no more than 5 feet away from me.
Some info:
1) All XS3 radios are FM based
2) There are two flavors, 27Mhz and 75Mhz. You will need to find out which of the two you have.
3) The channels on the radio and the frequencies of standard crystals dont always match up exactly. There is a chart in the back of the manual that give you frequency numbers for each channel.
4) I dont know what kind of receiver you currently have so I have no idea what type of connectors you need. The RS3000 that comes with the XS3 uses either Hitec, Futaba J, or JR type connectors. any of the three should work you may just have to cut the tab off.
So.... getting back on topic...you will need to make sure the existing receiver in your Storm is an FM receiver on the correct frequency (27 or 75) then check the frequency of the crystal in the receiver against the chart in the back of the manual to select the correct channel in the radio. Then finally make sure you to test all electrics at range BEFORE you start your engine.
Like I said, I tried this already and it did not work for me. Maybe you will have better luck.
