SQL & PL/SQL :: Generate Command To Rename Log File From ASM To Non-ASM

I am in the process of recovering a database from an ASM environment to a non-ASM environment using RMAN. I've got a query to generate the command to RENAME the file:

SELECT 'ALTER DATABASE RENAME FILE '''||MEMBER||''' TO '''||'/u01/data/dev'||
SUBSTR(MEMBER,
INSTR(MEMBER, '/', -1, 1),
INSTR(MEMBER, '.', 1, 1) - INSTR(MEMBER, '/', -1, 1)) ||
DECODE(SUBSTR (MEMBER, 1, INSTR(MEMBER, '/', 1, 1) -1), '+DATA', 'a', '+FRA', 'b', 'c') ||'.log'';'
FROM V$LOGFILE;

When I run the query, this is an example of the result I get:

ALTER DATABASE RENAME FILE '+FRA/db1/onlinelog/group_3.259.766075171' TO '/u01/data/dev/group_3b.log';
ALTER DATABASE RENAME FILE '+DATA/db1/onlinelog/group_1.262.766075829' TO '/u01/data/dev/group_1a.log';

But I want to replace the "group" with "redo" and get the below result:

ALTER DATABASE RENAME FILE '+FRA/db1/onlinelog/group_3.259.766075171' TO '/u01/data/dev/redo_3b.log';
ALTER DATABASE RENAME FILE '+DATA/db1/onlinelog/group_1.262.766075829' TO '/u01/data/dev/redo_1a.log';