Originally Posted by Shimee

No.

Originally Posted by Shimee

They're completely different units and not interchangeable. The 97-98 models also don't have the wiring to hook up just the keyless entry. You have to install the security system to get that functionality.

Originally Posted by TheJGB-2KTypeSH

In order to get keyless entry on a 97-98 Prelude you have to purchase the OEM security system

Parts# are
08E51-SV4-102F this is the 1997 OEM alarm (superceded part# was SV4-101F) still available from Honda
08E51-S84-100 this is for the 1998+ OEM alarm still available from Honda

08E55-S30-100 this is the 1997-1998 alarm attachment still available from Honda


What is NOT AVAILABLE anymore for the 97-98 OEM alarm is the
security system options harness (08E57-S30-100)
& it is used for connecting an external siren & hood switch)
the external siren 08E49-S30-100F (not available from Honda discontinued)
the hood switch 08E49-S30-100G (not available from Honda discontinued)


here is a link to the installation instructions for 1997
Accessories Installation Instructions
Here is the link for the '98 install
Accessories Installation Instructions

The part#s for 99-01 are DIFFERENT
08E51-S84-100 OEM alarm (same part as 98-02 Accord and 2000-2004 S2000)
08E55-S30-101 attachment kit (THERE ARE ONLY FOUR of these left in the US AS OF TODAY 9-21-11)
08E57-S30-101 security system options harness (not available but the 98-02 Accord one is available part# 08E57-S84-100 & it might also work in the 1998 too)
?? the hood switch (not available) (the 98-02 Accord one is still available it might work part#08E49-S84-100G)
?? external siren (not available) but you are able to use the CRV one 08E49-S10-101F for a 98-01 model (what I did)